Sturm Images of Comet 1996 B2 Hyakutake

1 min (approx) unguided exposures using 50mm, f1.7, Koday Royal Gold 1000.
I took these photos on Monday, March 25 at approximately 2:00 am CST
from Lake McMurtry near Stillwater, Oklahoma. I don't know if the
brown sky fog is from the film or from the sodium vapor lights of
Stillwater. (Please let me know how I can reduce sky fog -- filters?)
The sky transparency was excellent with a limiting magnitude 6.0+. I
could see 30-40 degrees of the tail with the naked eye!